Question: What is the cosmic microwave background experiment with the longest wavelength?
Paraphrase: Which cosmic microwave background experiment has the longest wavelength?
SPARQL (Wikidata): select ?ent where { ?ent wdt:P31 wd:Q33093130 . ?ent wdt:P2808 ?obj } ORDER BY DESC(?obj)LIMIT 5 
Answer: Cosmology Large Angular Scale Surveyor, Cosmology Large Angular Scale Surveyor, AMiBA, Spider, Spider